125916220 has 12 divisors (see below), whose sum is σ = 264424104. Its totient is φ = 50366480.

The previous prime is 125916199. The next prime is 125916223. The reversal of 125916220 is 22619521.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125916223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3147886 + ... + 3147925.

It is an arithmetic number, because the mean of its divisors is an integer number (22035342).

Almost surely, 2^125916220 is an apocalyptic number.

125916220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

125916220 is an abundant number, since it is smaller than the sum of its proper divisors (138507884).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

125916220 is a wasteful number, since it uses less digits than its factorization.

125916220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6295820 (or 6295818 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 125916220 is about 11221.2396819603. The cubic root of 125916220 is about 501.2186540183.

The spelling of 125916220 in words is "one hundred twenty-five million, nine hundred sixteen thousand, two hundred twenty".